• Partly cloudy 72°
    Ragweed Pollen Current Weather
    • Relative Humidity
      83%
    • Yesterday
      Temp
      64°
    • RealFeel
      72°
  • Early AM

    Sep 1

    Lo 66°

    A thunderstorm in parts of the area

    Ragweed Pollen Weather
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    Day Details >
  • Today

    Sep 1

    Hi 80°

    Clouds breaking; not as warm

    Moderate ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    Day Details >
  • Tomorrow

    Sep 2

    Hi 77°

    Clouds and sun; less humid

    Moderate ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    Day Details >
Next

Rain possible Sunday morning through Monday afternoon

9/1 9/2 Now: 3:14am
AM 3-7
  • 3am Thunderstorms 69° 51%
  • 4am Cloudy 68° 47%
  • 5am Cloudy 67° 34%
  • 6am Cloudy 66° 34%
  • 7am Cloudy 67° 37%
PM 2-7
  • 2pm Partly sunny 79° 34%
  • 3pm Partly sunny 80° 34%
  • 4pm Partly sunny 77° 40%
  • 5pm Partly sunny w/ showers 76° 51%
  • 6pm Partly sunny 75° 47%
  • 7pm Partly sunny 72° 36%
PM 8-1
  • 8pm Partly cloudy 71° 20%
  • 9pm Partly cloudy 69° 20%
  • 10pm Partly cloudy 67° 20%
  • 11pm Partly cloudy 65° 20%
  • 12am Partly cloudy 65° 20%
  • 1am Mostly clear 64° 14%
Hourly Forecast >

Waltham Pollen Levels - September 1

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Tree Pollen

    Low

  • Ragweed Pollen

    Moderate

  • Mold

    Low

  • Grass Pollen

    Low

Sep 01, 2016; 2:10 AM ET
Five-day Weather Forecast for Boston, MA
Boston, MA Weather Forecast

Waltham Weather Report

Warm fall may jeopardize foliage displays in northeastern US

September 1, 2016; 12:34 AM ET

Though the summer season is winding down, forecasters are predicting a warm start to fall across the Northeast — a weather pattern that could spell bad news for fall foliage lovers. more >

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